Indeed, it's important to look not just at the average performance and performance extremes, but also the distribution of performance.
Standard deviation helps with this. Also, often times looking at the latency at the 50, 90, and 99th percentiles is valuable as you can see events that would make your users unhappy. They're a very tangible series of metrics.
Standard deviation helps with this. Also, often times looking at the latency at the 50, 90, and 99th percentiles is valuable as you can see events that would make your users unhappy. They're a very tangible series of metrics.